#AC2621#AC2621

#AC2621 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.9% C 0.171 H 27.8°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX#AC2621
RGBrgb(172, 38, 33)
HSLhsl(2, 68%, 40%)
HSVhsv(2, 81%, 67%)
CMYKcmyk(0%, 77.9%, 80.8%, 32.5%)
CIE-LABlab(38.32, 52.90, 37.01)
CIE-LCHlch(38.32, 64.56, 34.98°)
OKLaboklab(48.87% 0.1514 0.0799)
OKLCHoklch(48.87% 0.171 27.8)
XYZxyz(17.9831, 10.2696, 2.4739)
Luminance0.1027 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AC2621 #21A7AC
analogous
#AC2162 #AC2621 #AC6B21
triadic
#AC2621 #21AC26 #2621AC
tetradic
#AC2621 #62AC21 #21A7AC #6B21AC
square
#AC2621 #62AC21 #21A7AC #6B21AC
split-complementary
#AC2621 #21AC6B #2162AC
monochromatic
#450F0D #791B17 #AC2621 #D83832 #E26A66

Accessibility & contrast

On white

6.88
#AC2621 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.05
#AC2621 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2621
6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AC2621#FFFFFF#000000##FFFFFF
##AC26211.006.883.056.88
#FFFFFF6.881.0021.001.00
#0000003.0521.001.0021.00
##FFFFFF6.881.0021.001.00

Color blindness preview

Protanopia (red-blind)
#50481F
Deuteranopia (green-blind)
#71651B
Tritanopia (blue-blind)
#BE0027
Achromatopsia (no color)
#5A5A5A

Design tokens & code

CSS
--color: #ac2621;
/* rgb */ color: rgb(172, 38, 33);
/* oklch */ color: oklch(48.9% 0.171 27.8);
Tailwind
colors: {
  custom: {
    50: '#ce6c5d',
    500: '#ac2621',
    950: '#000000',
  },
}
SCSS
$custom: #ac2621;
$custom-light: #ce6c5d;
$custom-dark: #000000;
JSON
{
  "hex": "#ac2621",
  "rgb": {
    "r": 172,
    "g": 38,
    "b": 33
  },
  "hsl": {
    "h": 2.158,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48869,
    "c": 0.17114,
    "h": 27.8
  },
  "luminance": 0.10267
}

Semantic roles & 50–950 ramp

primary
#AC2621
secondary
#62C3C7
accent
#E4EB3D
background
#FDF6F5
surface
#FBECE9
border
#D4C7C5
text
#160804
muted
#847A79

Preview Lab

Preview with #AC2621

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#AC2621 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva